package com.yonyou.jrmob.application.tools;

import android.util.Log;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
import java.util.zip.ZipFile;

import jrmob.yonyou.com.commonlib.app_config_tool.tool.base.LogUtils;

/**
 * Created by zhangguang on 2017/2/18.
 */

public class UpZipFile {


    /**
     * 解压缩功能.
     * 将zipFile文件解压到folderPath目录下.
     *
     * @throws Exception
     */
    public static int upZipFile(File zipFile, String folderPath) throws ZipException, IOException {
        //public static void upZipFile() throws Exception{

        int result = 0;  // 默认成功标识

        try {

            ZipFile zfile = new ZipFile(zipFile);
            Enumeration zList = zfile.entries();
            ZipEntry ze = null;
            byte[] buf = new byte[1024];
            while (zList.hasMoreElements()) {
                ze = (ZipEntry) zList.nextElement();
                if (ze.isDirectory()) {
                    Log.d("upZipFile", "ze.getName() = " + ze.getName());
                    String dirstr = folderPath + ze.getName();
                    //dirstr.trim();
                    dirstr = new String(dirstr.getBytes("8859_1"), "GB2312");
                    Log.d("upZipFile", "str = " + dirstr);
                    File f = new File(dirstr);
                    f.mkdir();
                    continue;
                }
                Log.d("upZipFile", "ze.getName() = " + ze.getName());
                OutputStream os = new BufferedOutputStream(new FileOutputStream(getRealFileName(folderPath, ze.getName())));
                InputStream is = new BufferedInputStream(zfile.getInputStream(ze));
                int readLen = 0;
                while ((readLen = is.read(buf, 0, 1024)) != -1) {
                    os.write(buf, 0, readLen);
                }
                is.close();
                os.close();
            }
            zfile.close();
            Log.d("upZipFile", "upZipFile finish");

            return result;

        } catch (Exception e) {
            LogUtils.e(e);
            result = 2;  // 错误标识
        }

        return result;


    }

    /**
     * 给定根目录，返回一个相对路径所对应的实际文件名.
     *
     * @param baseDir     指定根目录
     * @param absFileName 相对路径名，来自于ZipEntry中的name
     * @return java.io.File 实际的文件
     */
    public static File getRealFileName(String baseDir, String absFileName) {
        String[] dirs = absFileName.split("/");
        File ret = new File(baseDir);
        String substr = null;
        if (dirs.length > 1) {
            for (int i = 0; i < dirs.length - 1; i++) {
                substr = dirs[i];
                try {
                    //substr.trim();
                    substr = new String(substr.getBytes("8859_1"), "GB2312");

                } catch (UnsupportedEncodingException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                ret = new File(ret, substr);

            }
            Log.d("upZipFile", "1ret = " + ret);
            if (!ret.exists())
                ret.mkdirs();
            substr = dirs[dirs.length - 1];
            try {
                //substr.trim();
                substr = new String(substr.getBytes("8859_1"), "GB2312");
                Log.d("upZipFile", "substr = " + substr);
            } catch (UnsupportedEncodingException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            ret = new File(ret, substr);
            Log.d("upZipFile", "2ret = " + ret);
            return ret;
        }
        return ret;
    }

}
